PAPHIOPEDILUM philipp.alba with brown spot
 

Hi. I have a Philippinense Alba. From some days there are brown spots on leaves. I cutted 2 leaves, but I don't know what disease is this. I think bacterial. But I'm not sure.So I gave a plant Cinnamon and Eritromycine solphate.
Please can you help me?
I enclose photos.

Hi and welcome to OB!!

It looks bacterial and I would be spraying it with a systemic fungicide as soon as possible!

Good luck with it and let us know how it turns out.

Debs, if it's bacterial, a fungicide will do nothing to cure it!

Inari, what's the product you used? I can't find what Eritromycine sulphate, but it sounds like an antibiotic. I didn't know that plant antibiotics were legal outside of the netherlands.
You should probably treat it with some broad spectrum disease product.

I think she probably used erythromycin.

Carl